Answer:
3.√
4.√
Step-by-step explanation:
similar rectangles have proportional sides so compare corresponding sides to check
1. 169/1.3 = 49/0.7 → 130 ≠70 no
2. 18.55/5.3 = 10.5/3.5 → 3.5 ≠ 3 no
3. 120/24 = 60/12 → 5 = 5 yes
4. 189/2.1 = 81/0.9 → 90 = 90 yes
If h(x) is the inverse of f(x), what is the value of h(f(x))?
N
0
х
f(x)
Answer:
If f and h are inverses, then:
f (h(x) ) = x and also
h( f(x) ) = x
Step-by-step explanation:
Inverse function: The function f(x) goes from domain to range and the inverse function f^{-1} goes from Range to domain
Option C is correct
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How many days are in 6 weeks not including weekends ?
Answer:
30 days
Step-by-step explanation:
There are 6 * 7 = 42 days in 6 weeks.
There are 2 * 6 = 12 weekends in 6 weeks.
42 - 12 = 30
Answer:
30 days
Step-by-step explanation:
Write 3/10 as a division
Answer:
3 divided by 10.
Step-by-step explanation:
I'm slightly confused as to what you're asking about, but I could only assume that you want me to represent that fraction as a division problem. In that case, I have listed the answer above. If you want it in decimal form, it is 0.3.
Answer:
I hope u get what ur looking for and I wish u give me brainlist But I know u won't cuz everyone say that . But thank you so much if u put for me and It would be a very appreciated from you and again thank you so much
I need help with this question pls
Answer:
C
Step-by-step explanation:
SA=pi*r^2+pi*r*s
SA=3.14*3^2+3.14*3*8
SA=3.14*9+3.14*24
SA=103.62
SA= about 104 inches
Aubrey included the base (you can't put on a hat that has a bottom), the right work should be:
SAhat=pi*r*s
SAhat=3.14*3*8
SAhat=3.14*24
SAhat=75.36
SAhat= about 75
Thus, answer is C
Which phrase bost describes the translation from the graph y=(x+2)^2 to the graph of
y=x^2 + 3?
Answer:
C
Step-by-step explanation:
2 units right and 3 units up
If f(x) = x2 − 81 and g(x) = x+9/x-9, find g(x) · f(x).
Answer:
f(x) = x² - 81 = ( x+ 9)(x - 9) Difference of two squares
g(x) = x+9/x-9
g(x) . f(x) = x + 9/ x - 9 × (x+9)(x - 9)
= ( x + 9)(x +9)
= ( x + 9)²
= x² + 18x + 81
Hope this helps.
The length of rectangle B is 25% greater than the length of rectangle A. The width of rectangle B is 3/5 X the width of rectangle A. Find the fraction Area of B/Area of A Give your answer in its simplest form.
Answer:
The value of Area of B/Area of A is 0.75.
Step-by-step explanation:
It is provided that:
The length of rectangle B is 25% greater than the length of rectangle A. The width of rectangle B is 3/5 X the width of rectangle A.Consider the diagram below.
The area of a rectangle is:
[tex]\text{Area}=\text{Length}\times \text{Breadth}[/tex]
Compute the area of rectangle A as follows:
[tex]\text{Area of A}=l\times b[/tex]
Compute the area of rectangle B as follows:
[tex]\text{Area of B}=1.25\ l\times \frac{3}{5}\ b=0.75\ (l\times b)[/tex]
Compute the value of Area of B/Area of A as follows:
[tex]\frac{\text{Area of B}}{\text{Area of A}}=\frac{0.75\ (l\times b)}{l\times b}=0.75[/tex]
Thus, the value of Area of B/Area of A is 0.75.
If a soccer team made 25 penalty shots out of 100 what fraction and what percentage of penalty shots did the team miss!? Choose two answers
Answer:
It will be letter D and A
Step-by-step explanation:
Letter D, because you are saying that is 25 over 100 and letter A because the equation to find a percentage is:
[tex]\frac{X}{Y}= \frac{PERCENTAGE MISSING}{100}[/tex]
X and Y: will be the information that they give so, the equation and answer will be
[tex]\frac{25}{100} =\frac{x}{100}\\\\ \frac{25* 100 }{100} \\\\\frac{2500}{100} \\\\25%[/tex]
Answer:
D & A
Step-by-step explanation:
Given the diagram below with line DE║ line AC. Find BC.
Answer:
13.5
Step-by-step explanation:
In triangle ABC, DE || AC
Therefore by basic proportionality theorem:
[tex] \frac{BD}{DA} = \frac {BE}{EC} \\\\
\therefore \frac{4}{8} = \frac {BE}{9} \\\\
\therefore \frac{1}{2} = \frac {BE}{9} \\\\
\therefore BE = \frac{9}{2} \\\\
\therefore BE = 4.5\\
\because BC = BE + EC \\
\therefore BC = 4.5 + 9\\
\huge \red {\boxed {\therefore BC = 13.5}} \\[/tex]
Noah says:
I am thinking of a number,
When I subtract 17 and
multiply the answer by
8, I get 32.
What is Noah's number?
Answer:
21
Step-by-step explanation:
You subtract 17 (x - 17) and multiply the answer by 8 (8(x - 17)). This is equal to 32. Solve for x
8(x - 17) = 32
8x - 136 = 32
8x = 168
x = 21
Evaluate 24nk if n= 6 and k = 8
24nk
n=6
k=8
24 × (6) × (8)
24 × (48) = 1152
Answer:
24nk=1152
Step-by-step explanation:
24nk
Substituting the values in the equation
24*6*8
In order to evaluate these values we have to simply multiply the numbers
144*8
I hope it will help you
1152 is the answer
Given the graph below, which of the following statements is true?
Since there is nothing attached for me to help you I looked for a website that can find the answer with an explanation. It is called quickmath it’s like a math calculator . Hopefully that helps you .
Amelia rented a DVD and it was due to be returned on the 26 November she acctually returned it to the shop on the 12 December. The rental shop applies a fine of 9p for everyday the DVD is overdue
Answer:
144 p
Step-by-step explanation:
It was due to be returned on 26 November but she returned it on 12 December.
She was therefore with it for an extra 16 days.
The fine is 9p per day. Therefore, she will pay a fine of:
9 * 16 = 144 p
Answer:
Amelia rented a DVD and it was due to be returned on 26 November. She actually returned it to the shop on 12 December. The rental shop applies a fine of 9p for every day the DVD is overdue.
Work out the total fine paid by Amelia. Give your answer in £
PLEASE HELP MEEEEE!!
Answer:
3) 10^12
4) 0.99^4
8) x^12
9) 3/4^6
Step-by-step explanation:
10^(6+5+1)
0.99^(3+1)
x^(6+2+4)
3/4^(2+2+2)
3) 10^12=1000000000000
4)0.99^4=0.96059601
8)x^12
9)(3/4)^6=0.1779...
Gina bought one pound of cheese and used of it.
She split apart the remaining cheese into 5 equal parts to eat for lunch each day during
the week.
Which expression represents the cheese Gina will eat for lunch each day?
Answer: 1p/5
Step-by-step explanation:
Answer:
Gina will eat pound cheese for lunch each day
Explanation
Amount of cheese bought = 1 pound and the amount of cheese used = pound
So, the remaining amount of cheese
As this pound cheese is splitting into 5 equal parts, so the amount of each part will be: ÷ 5 = × = pound
So, Gina will eat pound cheese for lunch each day.
Step-by-step explanation:
Solve log x= 3.
x=3
x= 30
x= 1,000
x= 10,000
The value of x must be equal to 1000
What is the logarithmic function?In mathematics, the logarithmic function is an inverse function to exponentiation. The logarithmic function is defined as
For x > 0 , a > 0, and a ≠1,
y= logₐ x if and only if x = a^y
Then the function is given by
f(x) = logₐx
Given here log x= 3 ⇒x=10³
⇒x=1000
Hence, The value of x must be equal to 1000
Learn more about the logarithmic function here:
https://brainly.com/question/30085872
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Find the solutions to the equation below.
Check all that apply.
2x^2+7x+3=0
O A. X=7
OB. X=4
OC. X=3
OD. X=-1/2
OE. X = 2
OF. X=-3
The solutions of the equation 2x²+7x+3=0 are x=-1/2 and x=-3.
What is quadratic equation?A quadratic equation is a second-order polynomial equation in a single variable x , ax²+bx+c=0. with a ≠ 0 .
The given equation is 2x²+7x+3=0
Two times of x square plus seven times of x plus three equal to zero is the form of quadratic.
We can solve the quadratic equation 2x²+7x+3=0 using factoring
Let us find two numbers whose product is 2x²+7x+3=0 and
whose sum is 7.
We can see that 2x²+7x+3=0
Let us factor by grouping
2x²+6x+x+3=0
2x(x+3)+(x+3)
=(2x+1)(x+3).
x=-1/2 and x=-3
Therefore, the solutions are x=-3 and x=-1/2.
To learn more on Quadratic equation click:
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Which statements are true when using algebra tiles to solve the equation 8x + (–4) = 11x + 5? Check all that apply.
Answer:A D and E
Step-by-step explanation:
Answer:
Step-by-step explanation:
A, D, and E.
factor x^2 + 12x + 36
Answer:
(x + 6 )(x + 6 )
2 numbers to add to 12 but also multiply to get 36
Answer:
(x+6)(x+6)
Step-by-step explanation:
x^2 + 12x + 36
What 2 numbers multiply to 36 and add to 12
6*6 =36
6+6 =12
(x+6)(x+6)
Solve for x. answers: A) 4 B) 6 C) 7 D) 5
Answer:
D) 5
Step-by-step explanation:
The smaller triangle is similar to the big triangle with the big triangle with a scale factor of 1.8.
5x × 1.8 = 45
Divide both sides by 1.8
5x = 25
Divide both sides by 5
x = 5
What is the definition of the cosine ratio of an acute angle of a triangle?
opposide side / hypotenuse
adjacent side / opposite side
opposite side / adjacent side
adjacent side / hypotenuse
Answer:
I think the answer is the last one
adjacent side / hypotenuse
Write 0.03 as percents.
Answer:
3%
Step-by-step explanation:
Just move the decimal 2 spaces to the right .03 becomes 3% :)
If f(x) = 5x + 40, what is f(x) when x = -5?
N
ܩ ܣ
15
Answer:
15
Step-by-step explanation:
f(x)=5x+40
so f(5)=5(-5)+40
f(5)= -25+40
f(5)=15
Consider the system of equations. y = –5x – 1 y = 2x + 6 Choose the correct answer to each question. What is the slope of the first line? What is the slope of the second line? How many times do the lines intersect? How many solutions does the system have?
What is the slope of the first line?
✔ –5
What is the slope of the second line?
✔ 2
How many times do the lines intersect?
✔ 1
How many solutions does the system have?
✔ 1
Answer:
Step-by-step explanation:
-5x - 1 = 2x + 6
-7x - 1 = 6
-7x = 7
x = -1
y = -5(-1) - 1 = 5 - 1 = 4
(-1. 4)
first slope: -5
second slope: 2
once
one
If the cosine value is 80*, the secant value to the hundredths degree is: 0.98 0.17 5.76
Work Shown:
sec(80) = 1/cos(80) = 5.75877048314363 which rounds to 5.76
Make sure your calculator is in degree mode.
6w-19 + k when
w=8 and k = 2
Answer:
31.
Step-by-step explanation:
1. Write out the problem.
6w-19 + k; w=8 and k=2
2. Figure out the first part of the problem.
So, if w=8 and 6 and w are next to each other, we should multiply 6*8, which is 48. Next, it says to subtract 19. 48-19=29.
3. Find out what the last part of the problem is.
Since the first part of the problem is 29 and k=2, we should add 29+2=31, which is the final answer.
Hope this helped :)
please helppppppppppppppp fine x its high school geometry
Solve: 3 In x= In 216
O x= 3
0 x = 6
OX= 72
DONE
ANSWER IS B
X=6
Answer:
x = 6
Step-by-step explanation:
3 ln x = ln 216
Rewrite 216 as 6^3
3 ln x = ln 6^3
We know that ln a^b = b ln a
3 ln x = 3 ln 6
x = 6
2. Solve this problem: There will be 460 people at the sport's award banquet. If each table seats 8 people, how many tables are needed?
A. 3,680 tables
B. 57 tables
C. 58 tables
D. 452 tables
Answer:
C. 58 tables
Step-by-step explanation:
If there are 460 people, and each table seats 8 people, then we divide 460 by 8, giving us 57.5 tables. We cannot have a half of a table, so the answer is 58 tables.
Given f(x)=-x+6 and g(x) =f(x+3), write an equation for function g.
Answer:
G(x)=-(x+3)+6
Step-by-step explanation:
f(x) means that whatevers in the parentheses is x. In g(x) x is equal to x+3